In addition to the answer extraction algorithm above, we also implemented the normalized answer span scoring technique described by [1]}.
Each answer span in each candidate context \(C_i\)  is rescored by:
\(s_{i,j}^{\prime } = \textrm {softmax}(\vec{r})_i \cdot \textrm {softmax}(\vec{s_{i}})_j\) 
